Lost Definition and 564 Threads

Can someone explain to me how to do this? If a(x-2)+4(5x+b)=23x-30 find the values of a and b Thank you

Is it better to have loved and lost than to have ever loved at all?

I understand that when you sweat, the water is to cool you and urea is excreted because it's a waste, however I don't know why salt is excreted, nor to I know how electrolytes are used in the process of sweating. Would someone care to enlighten me?

A cylinder is fitted with a piston, beneath which is a spring, as in the drawing. The cylinder is open at the top. Friction is absent. The spring constant of the spring is 2900 N/m. The piston has a negligible mass and a radius of 0.023 m. (a) When air beneath the piston is completely pumped...

First, we find in the skeptics dictionary that the concept is not well defined. http://skepdic.com/occam.html Next, the concept predates modern physics and is no more valid than 12th century physics. Consider Occam's original premise: Clearly the credibility of this premise died with...

Here's a problem that I've been having trouble on for awhile and seem to be stuck. I was just wondering if someone could guide me or show me how to do this problem. The Ballistic pendulum is a device usd to measure the speed of a fast-moving projectile such as a bullet. The bullet is fired...

http://www.telegraph.co.uk/news/main.jhtml?xml=/news/2003/10/27/natlan27.xml&sSheet=/news/2003/10/27/ixnewstop.html

Okay, I have this problem I've been fighting with for a couple of hours now. I have the answers for it, but I can't figure out how they're the answers. Here's the problem: A sledge loaded with bricks has a total mass of 18.0 kg and is pulled at constant speed by a rope. The rope is inclined...

Hey all, First-time poster here, hope y'all can help me. I'm ok with 85% of my homework this evening, but this one darned problem keeps tripping me up. Real quick, just to note, I'm still in high school, but this is Physics AP, so let me know if I'm in the wrong forum. Thanks! (a)...

A river flows with a uniform velocity v. A person in a motorboat travels 1.13 km upstream, at which time a log is seen floating by. The person continues to travel upstream for 68.4 min at the same speed and then returns downstream to the starting point, where the same log is seen again. Find the...

Would you like to listen a lesson from Richard Feynman? OK OK. Click the link to listen a lesson about solar system. At the destination page click the link at the bottom.( 17.4 MB) Don't worry about the file size - it's screaming. Enjoy!:wink: http://kitap.tubitak.gov.tr/k177.html

Hello, again. I have a question problem, fairly simple, that I have most likely done wrong. It is about a pool leak. When the pools water pump is on, from 3:50pm to 10:10am the pool lost 2.25in. When the pump was turned off from 10:10am, to 1:50pm, it lost 7/8 in. They want to know how...

"The explorer who discovered the Titanic beneath the Atlantic in 1985 is setting out on another underwater expedition to document Noah's flood. The Black Sea was originally a freshwater lake that in ancient times became inundated by the salty Mediterranean. Robert Ballard believes that this was...

I have always had a fascination of Pluto, is it labeled as a lost satellite of Neptune, or a planet on it's own because of Charon?